Understanding AR, VR, MR and XR

The distinctions between virtual reality and physical reality have become blurred as technologies like augmented reality (AR), virtual reality (VR), mixed reality (MR) and extended reality (XR) have gained traction. Each of these technologies has their own characteristics, applications and uses and benefits, and many of these go hand-in-hand with the Internet of Things (IoT). This article breaks down AR, VR, MR and XR, explores how they differ and examines how they integrate with IoT to influence industries.

What is virtual reality (VR)?

Virtual reality (VR) puts people in an entirely virtual space with headsets. The virtual world, in which users become separated from the real world, is explored and engaged in by VR, sometimes in 3D. Virtual reality technology is already used for entertainment, education and real estate, giving you an experience that’s removed from reality.

• Market growth: VR’s global market size is expected to grow from US$16.67 billion in 2022 to US$227.34 billion by 2029, achieving a CAGR of 10.77% in the period 2024-2028

Uses and applications:

• Training and simulation: VR enables realistic training experiences for industries like aviation, healthcare and defences. Surgeons can use VR to practice complex procedures in a risk-free environment.
• Entertainment and gaming: VR games and experiences immerse players in dynamic digital worlds, enhancing engagement and interaction.
• IoT integration: In industrial settings, VR is used with IoT for remote monitoring and control. Workers can virtually access IoT sensor data to inspect complex machinery and optimise processes remotely.

What is augmented reality (AR)?

Augmented reality (AR) overlays digital content such as images, audio or videos on top of the physical world and makes it seem real to the user. AR does not offer users an immersive experience, like VR does. Some of the more familiar applications are smartphone AR games like Pokémon GO that exploit GPS signals and smartphone cameras to offer a reality experience with digital elements reconstructed on top of it.

• Market growth: The AR market is anticipated to reach US$88.4 billion by 2026, driven by increasing adoption across sectors like retail, healthcare and education.

Uses and applications:

• Retail: AR apps allow customers to visualise products in their space before purchasing. For instance, Ikea’s AR app lets users ’place‘ furniture in their homes.
• Healthcare: AR is used in medical training and surgical planning, offering 3D representations of organs and anatomy.
• IoT Integration: When paired with IoT, AR enhances machine diagnostics by displaying real-time sensor data on machines, allowing technicians to identify and fix issues faster.

What is mixed reality (MR)?

Mixed reality (MR) is the convergence of the physical and virtual worlds, in which a user can experience the real and the virtual at the same time. That is done with sensors and spatial mapping systems that enable digital objects to interact with the physical environment. In contrast to VR, where the person is detached from the world, in MR, they are in their physical environment while interacting with virtual items.

Uses and applications:

• Manufacturing: MR allows workers to overlay virtual schematics onto physical components, making assembly and maintenance easier.
• Education: Students can interact with 3D models of complex subjects like molecules or historical artifacts, enhancing learning experience.
• IoT integration: MR and IoT enable advanced functionalities in ’smart factories’.Workers can use MR headsets to see real-time IoT data on machinery, helping optimize workflows, monitor production, and reduce downtime.

What is extended reality (XR)?

Extended reality (XR) is an umbrella term for AR, VR and MR, and describes immersive technologies. XR is a set of different realities and the future of digital interaction since it is an integration of both real and digital environments. Applications of XR could range from the most extreme VR applications to AR apps that fill our real world with more data.

• Market growth: The XR market is anticipated to reach US$615.49 billion by 2029, expanding at a compound annual growth rate of 40.61% from 2024 to 2029.

Uses and applications:

• Corporate training: XR facilitates realistic training for high-stakes jobs, such as operating heavy machinery or conducting complex medical procedures.
• Remote collaboration: XR enables virtual meetings where users feel present with others, despite being in different physical locations.
• IoT integration: In smart city development, XR can help visualise real-time IoT data like traffic, weather and infrastructure health, allowing city planners to optimise urban environments efficiently.

Comparing AR, VR, MR and XR

How these technologies play into IoT

Each of these technologies can be enhanced by IoT, creating a symbiotic relationship where IoT provides real-time data, and AR, VR, MR and XR visualise this data interactively:

1. Data visualisation: IoT generates vast amounts of data, and AR, MR and XR provide intuitive, immersive ways to visualise it, from displaying live environmental metrics to showcasing machine diagnostics in real-time.
2. Remote operations: In industrial settings, IoT and VR enable workers to control machinery from a distance, improving safety and operational efficiency.
3. Smart cities and urban planning: XR visualises IoT data from smart city sensors, helping planners manage resources like traffic and public safety.
4. Healthcare monitoring: IoT devices collect patient data, which can be displayed through AR for healthcare providers, enabling real-time monitoring and potentially improving patient outcomes.

The differences between AR, VR and MR are in the ways each technology connects to the physical and virtual. These technologies are merging with IoT more and more and their applications are scaling from healthcare to manufacturing to retail and smart cities, changing the way we access data and interact with the world around us. The steady growth in these markets drives the need to adopt these technologies because each one brings its own advantages to IoT integration allowing for better user experiences and sector efficiency.

Article by Magda Dąbrowska, editor at WeKnow Media

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